Unlock instant, AI-driven research and patent intelligence for your innovation.

Ultrathin two-faced bright electrolytic copper foil in high performance, and preparation method

An electrolytic copper foil, high-performance technology, applied in the electrolytic process, electroforming, etc., can solve the problem of large surface roughness on the matte surface, and achieve low production cost, simple and practical preparation method, good tensile strength and elongation Effect

Inactive Publication Date: 2007-05-09
SUXI CHINA COPPER FOILS
View PDF0 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the technical problem of the large surface roughness of the rough surface of the existing electrolytic copper foil

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take the electrolyte solution with a copper content of 85g / l and an acid content of 105g / l and add it to the electrolysis equipment. The flow rate of the electrolyte solution per hour of each electrolysis equipment is 30-60 cubic meters. The dosage is the same, add organic mixed additives to the electrolyte at 400ml / unit before electrolysis, conduct electrolysis at 50-55°C, add organic mixed additives to the electrolyte at 150-250ml / min during electrolysis. Each unit of organic mixed additives is made of the following raw materials: 10 g / L polyethylene glycol, 750 mg / L sodium polydithiodipropane sulfonate, 200 mg / L thiourea, methyl thio Sodium carbamoyl propane sulfonate 50 mg / L.

[0016] In the electrolysis equipment of the present invention, the flow rate of the electrolytic solution per hour of each equipment is 30-60 cubic meters.

[0017] The matte surface of the electrolytic copper foil prepared in this example is mirror-like, the crystal grains are layered, and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

This invention discloses method for preparing high-performance and double-side-smooth ultra-thin electrolytic copper foil. The electrolytic copper foil has mirror plane-shaped gross surface, stratified structure, roughness not higher than 0.25 mum, thickness not higher than 8 mum, tensile strength higher than 40 kg / mm2, and elongation percentage higher than 5%. The method utilizes new electrolytic process and new mixed organic additives. The mixed organic additives comprise: poly (ethylene glycol), bis (sodium sulfopropyl) disulfide, thiourea and sodium methyl thioamino formyl propyl sulfonate. The electrolytic copper foil can substitute for calendered copper foil to be used in printed circuit soft board and polymer lithium ion battery. This method is simple, and the production cost is much lower than that of calendered copper foil, thus can largely reduce the production costs of printed circuit soft board and polymer lithium ion battery.

Description

technical field [0001] The invention relates to an electrolytic copper foil product and a preparation method thereof, in particular to an ultra-thin double-sided light electrolytic copper foil and a preparation method thereof. Background technique [0002] At present, copper foil products are divided into two types, electrolytic copper foil and rolled copper foil. Due to the influence of the production process, the single crystal nucleus of the electrolytic copper foil crystallizes into a pyramid shape, and the RZ of the rough surface of the copper foil product is more than 3 microns, and the surface roughness of the rough surface is relatively large, so it is mainly used for printed circuit hard The conductive material of the board. Rolled copper foil is mainly used for conductive materials of printed circuit flexible boards and polymer lithium-ion batteries. However, since the investment and production cost of producing rolled copper foil are higher than that of electrol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/04C25D3/38
Inventor 付强石晨唐斌
Owner SUXI CHINA COPPER FOILS